diff --git a/src/humanize/number.py b/src/humanize/number.py
index 08f0cd87..77475e31 100644
--- a/src/humanize/number.py
+++ b/src/humanize/number.py
@@ -126,7 +126,7 @@ def intcomma(value: NumberOrString, ndigits: int | None = None) -> str:
         ndigits (int, None): Digits of precision for rounding after the decimal point.
 
     Returns:
-        str: string containing commas every three digits.
+        str: String containing commas every three digits.
     """
     sep = thousands_separator()
     try:
@@ -137,7 +137,7 @@ def intcomma(value: NumberOrString, ndigits: int | None = None) -> str:
     except (TypeError, ValueError):
         return str(value)
 
-    if ndigits:
+    if ndigits is not None:
         orig = "{0:.{1}f}".format(value, ndigits)
     else:
         orig = str(value)
diff --git a/tests/test_number.py b/tests/test_number.py
index 4ffa706b..86767cf6 100644
--- a/tests/test_number.py
+++ b/tests/test_number.py
@@ -54,6 +54,7 @@ def test_ordinal(test_input: str, expected: str) -> None:
         ([14308.40, 3], "14,308.400"),
         ([1234.5454545], "1,234.5454545"),
         ([1234.5454545, None], "1,234.5454545"),
+        ([1234.5454545, 0], "1,235"),
         ([1234.5454545, 1], "1,234.5"),
         ([1234.5454545, 2], "1,234.55"),
         ([1234.5454545, 3], "1,234.545"),